Transmitter for printing telegraphs



' '.lime 26, 1923. l 11.4 657 E. E. KLEINSCHMIDT- TRANSMITTER FOR PRINTING TELEGRAPRS Inmu- A INVTOR. @Mw

TTORNEYS,

WITNESS:

June 26, 11923.. 3,469,357

E. E. KLEINSCHMIDT TRANSMITTER FOR PRINTING TELEGRAPHS -Filed May l, 1919 3 Sheets-Sheet 2 l A TT ORNEYS.

June 26, 11923'. M4603? E. E. KLEINSCHMIDT TRANSMITTER FOR PRINTI'NG TELEGRAPHS Filed May l, 1919 l3 sheets-Sheet 5` WI'T.- Y imm@ NVENTOR.

gmw 'Patented dune 2d, mhd,

ares

nonnen' rr. nnnrrtecnrrrnr, or noo i .el

rn, unvv'ronn, assroiron lro rn t;

@CHMmT-ELECTMC CGMPANY, A CORPORATION @E NEWYQBK,

vrsrrrrrnaren rnrn'rrn'e 'rianne application une i may Ji,

^ To all whom t may concern: v

Be it llrnovvn that l, EDWARD E. KLEIN- serrurier, a citizen ofthe United States, re-

sidingin-Nevv York, borough oit Brooklyn,

'in the county otl'ings and State of New va message is sentover aline conductor byv means of etape rovided 'with perforations arranged in suc a, Wayas When through the transmitter will cause distinctive electric impulse'sto be transmitted over the line, in response to which impulses apv distributore Which/ operate in syn propriete printing mechanism is operated-at the receiving station.

My invention is also particularly intendedor-use in a multipleirtelegraphsystem in vwhich commute-ting devices, usually terlruned c ron'isrn,:are placed at each end of the line.' A

v ln' a telegraph. system of this character, it is sometimes desirable for the operator at the receiving end of 'the line to communicate with the, o erator at the. other enddi'- a rectly over the ine. lnorder lto accomplish this result, amanually movable member is- 'provided, the tape controlled mechanism at vthe receiving end Y of the. line being interrupted While the means controlled 'by' the manually movable' member is' iii-operation.

r One oli-the objects of m-y invention is-the provision et interlocking. means for inter. rupting the operation of -tape controlled' mechanism While. 'the means controlled by thegmanually movable member is in operav l ing the operationof the device, successively te tion.

section through a" transmitter embodying .-my invention; Fig. 2- isxalsection along the line 2'2 of lig. l', but with they parts at the left-of the arm .32 in Fig, l removed; Fig. 3

-is a vertical section at rightangles to Fig.

- 1;l Fig# t is a detail view illustrating. the

i sets of contacts tor controlling the interlockingmagnet; Eig. 6 is en end view of Fig. 5; llig,` A7 is a diagrammatic View illustrating assed ln the drawings,. 'in which is shovvn'pone' 'embodiment ot the invention, Fig. l 1s a icio. serial rre. aratro..

the circuitA connections in the term ot' my. invention shown 1n lfigs. l to 6' Fig. 8 is a detail view illustrating a modided torm let interlocking mechanism, and Fig. 9 is a generalvviev'vof the transmitter and illua- @0.

trating the manner in which the taking up of the slack in the tape operates a nger to interrupt the operation of Ythe tape controlled mechanism.

ln the drawings, lis. a base and 2 a suit- @5 yable housing' for the mechanism of the transmitter. @n the top of the housing is mount- 'ed a guide plate 3, within-Which the perforated tape t is'received.. lt will be underf stood that the tape is of the same general il@ character as .that used in the Baudet system. @n its way to themachine the tape passesoveran apron 5 secured to the front endfof the housing. A cover plate @,Ipivoted at 7 to the frame et the machine, is arranged te to form, with the guide plate, a narrow opening 8 in which the tape is received.,

.lhe cover plate is held in closed position by a latch 9, pivoted at l0, on. the cover plate and passes throu h an openin .1l in the eo upper vWall of the ousing, the etent of the `latch engaging beneath the'wall of the housing adjacent said opening, f i

The tape is moved forward, step byustep,

by afeed Wheell 12, providedV `with teeth i3 et which eng e suitable openings formed in the tape.- he feed wheel 4isrnounted on a shaft 14 on which is secured a ratchet wheel ,15, which isstenped around bye pawl 16, pivoted at' 1 7. The ratchet Wheel is pre no vented from overstepping by a .detent 15, pivoted at 15'", the detent being held against' the-ratchetkwheel bya spring l5.- The pawl 16 is actuated by a magnet 181 which is, durenergized and fle-energized v'in' a manner which'will be hereinafter more fully exture 22 co-operating with vthe magnet 18.

lThe .attraction of the armature 22 also depresses,v a plurality of'v plungers '23, which normally extend through openings provided tot in the guide plate (see Fig..'2). Five such plungers areshown, as the combination of impulses obtained by this number is stuhcient to bring; about the number of combinations toprint. the desired chactere at the El@ Y @9a-riti receiving station. The plungers 'are guided by upper and lower guide plates, the upper one of which is not shown in the drawing,

and the lower one of which is indicated by the reference character 24. It is to be understood, however, that the upper guide plate through which the plungers 23 pass is stationary,while the lower guide plate' 24 1s movable, as will later appear. The plungers 23 are depressed when the armature 22 is attracted by its magnet, by a universal plate 25, which is also secured on one arm of the bell-crank 20, the edge of the plate being formed as a comb with slots 26 within whlch the plungers are received. Collars 27 are secured on the plungers 23 beneath the plate 25, so that when the plate is depressed, the walls of the plate 25 at the sides of the slots 26 engage the collars 27, thereby depressing the plungers 23.

The plungers 23 are normally elevated by operating levers 28, pivoted at 29, there being one operating leverfor each plunger. The ends of the levers are disposed beneath the plungers 23 and are maintained in almement therewith by slots 24n formed on a rejection of the guide plate 24, as shown in igs. 1 and 3. The ends of the operating levers 28, which are disposed beneath the plungers 23, are normally elevated by springs 30, one `for each operating lever, one end of the spring being-secured to the operating lever and the other end secured to a bracket 31, which is secured on the frame. Each operating lever is providedwith an upwardly extending arm 32, which engages, preferably by means of an adjustable screw 33, a contact tongue 34, pivoted at 35 and normally held in the position'shown in Fig. 1 by the springs 30, which overpower springs 36, one end of each spring 36 being connected to the lower end of contact tongue 34 and the other end being attached to a stationary member. It will, of course, be understood that the springs 36 move the contact tongues 34 to the right, as viewed in Fig. 1, when the tongues are released by the operating i levers 28. Each contact tongue 34 carries a 'd ouble contact 37 ,.which engages, in the position shown'in F 1g. 1, a stationary contact 38, and a second stationary contact 39 when it is moved to the right. Five movable contact tongues 34, corresponding in number to the number of the plungers 23, are provided, as indicated in Fig. 7, their contacts 37 cooperating with live separate sets of stationary contact points 38 and 3 9. l

The movable contacts 37 are connected b conductors 40 to gsegments 41, carried on a segment ring 42 o the distributor A. A collector ring 43 co-operates with ring 42, a brush 44 bridging the two members and engaging the various segments 41 in succession as the brushes ofthe distributor rotate, and

subsequent to the energ-i-zation of the magnet 18,. Other contact segments are shown on ring 42, included in channels to other instruments, the five se ents 41 representing the segments for the instrument here under consideration. The ring 43 is electrically connected to the line conductor 45. "The stationary contact points 38 are electrically connected together and to one pole of a battery 46, while the contact polnts 39 are connected to the other pole thereof, in the form here shown the battery being grounded at 47 from its middle point through the conductor 48, so that when the movable contacts 37 occupy the position shown in Fig. 7, posit-ive current will, when the circuit is completed through the distributor, ow to the line, and when the contacts are moved to the right, as viewed in Fig. 7 negative. current will similarly ilow to the line. It is to be understood, of course, thatas the brush 44 passes over the segments 41 successively, electric impulses are sent over the line, and the character of these impulses-that is, as to whether they are positive or negative impulseswill depend upon the positions of the movable contacts 37. It will be understood that in the Baudot system, which is the system in generalhere illustrated so far as the circuit connections are concerned, there is a distributor at each end of the line.

Thev distributor is also provided with ring 49 provided with `one or more insulated segments 52 and cooperating with a collector ring 50, the rings 49 and 50 being bridged by a'brush 51. The segment 52 is connected by a conductor 53 to one terminal of the'operating magnet 18, the other terminal of the magnet being connected by a conductor 54 to one pole of the battery 55, the other pole of the battery being connected to the collector ring 50. It

les

will be understood, therefore, that'the mag- 4 net 18 is energized once each time that the distributor brushes make a complete revolution.

Now, when the operator at the receiving station desires to communicate information over the line to the operator at the transmitting station-as, for example, to start the transmitting mechanism, or re-run the tape, or re-punch the tape-a member manually movable by the operator, is provided and an interlocking mechanism for interrupting operation of the tapecontrolled mechanism at the receiving Vstation while the means controlled by the manually movable member is in operatiom-'For this purpose a movable member, or'sector 56, is provided, which is mounted, as here shown, on one side of the transmitter and without the housing. This sector may be in the form of an arch (Figs. v2 and 4) provided with finger openings 57, the sector being moved to the left until, asview in Fig. 2,'and when llO lslides on a reduced portion of the rod 85 to permit vibration ofthe escapement 75. When the armature-72a is attracted, however, the arm 84 engages a shoulder on the rod 85 and moves 4the latter to the right, as viewed in Fig. 4. The link 85 is pivoted at 86 to 4an arm 87 -carrying the lower guide plate 24 for the plungers. The lower end of the arm 87 is provided with a laterally extending iinger 88 (shown in dotted lines in Fig. 4), which isl received in a second notch 89 formed in the end of the operatingl lever 28 when the latter is raised to the dotted line position shown in Fig. 4. This movement of the arm 87 moves the lower ends ofthe plungers 23 tothe right, as viewed in Fig. 1, out of the path of the bar 25, thereby rendering it impossible to operate theplungers. In order to provide for the movement of all of the operating levers 28 when the magnet 18 is energized and all the plungers 23 are out of the path of movement would bevbroken, inthe absence of anyv of the bar 25, a universal bar 25 is secured to the plate 25, which engages allrthe operating levers 28 and depresses them each' time the magnet 18 is energized.

Automatic means are provided `for inter? rupting the operation of the tape controlled mechanism in response to thertaking up of slack in the tape. In case the tape should be fed at a faster rate than it is'received from the perforatmgmachine, the tape mechanism to stop ,the operation of the transmitting mechanism. In the present inven' tion, the-tape 4 actuates a finger 90, formed with a bent end, extending in front of the.

machine beneath which the tape 'is fed 4to the machine. When the slack is taken up a predetermined amount, the end of the arm is raised and rocks 'shaft 92, to which the nger is secured. A two-armed member 94 is secured to the shaft 92, one arm 94 of whichnormally engages a stopf95, and to other arm 94" of which is connected one end of an over-centering spring 96. `The other end of the springl is connected to one arm 97 of ai two-armed member 97, the other arm 97 b of which normally extends beneath an extension 7 0 on the arm 20. `When the arm 94 is operated by the rotation of the shatr.92,idue to the taking 4up of the slack in the tape in the manner described, the movement of the spring' 96 past the center,

causes the arm 97" ofthe arm 97 to be moved upwardly, and when the armature 22 is attracted, the arm falls in behind thev extension of the arm 20 and holds the same against the magnet andv thereby prevents actuation of the tape controlled mechanism. As soon as the desiredy amount of slack has again been secured in the tape, the finger 90 may be depressed, thereby rocking the shaft 92 in the opposite direction and restoring the parts to normal position.

. The operation of the transmitter will readily be understood from the description, and is as follows:

Then tlie system is in operation, the tape is fed forward in the manner described, the operating levers 28 are all depressed beach time the magnet 18 is energized, and the springs 36 move all the contact tongues 34 to the right, as viewed in Fig. 1, and when the magnet 18 is subsequently de-energized and the line circuit completed successively through the\contact segments'41 of the distributor, impulsesI will be sent 'over 'the line, and the character of these impulsesthat is, as to whetherthey are positive or negative impulses-will ,epend upon the positions of the plungers 23 K t` the time the impulses are sent, it being understood that the movement of any of the pluhgers through the tape will bring'y about the movement of the corresponding'contact `ongues 34 to the left, as viewed 1n Fig. at the receiving station desires to communicate infomation to the operator at the other end of the line, the sector 56 is moved anticlockwise, as viewed in Fig. 1, the correct amountto cause the mechanism controlled by the sector to send the desired information. When the operatorstarts to move the A"sector 56 the contact springs 63 are closed in the mannerkdescribed, and the contacts' 64 opened. AAs soon as the operator releases the wheel, the contacts 64 are also closed and thecircuit of the magnet 61 is com- :foregoing 1. Now, when the operator 'y pleted. .The-energization of the magnet 61 actuates the interlocking lever. 67, which stopsthe operation of the tape controlled mechanism and permits the magnet 18, which is successively energized and de-energized by the movement of the distributor brushes, in the manner described, to vibrate the arm 72, and, through the flescapement' mechanism, permits the spring 60 to return vthe sector. 56 to its normal position, and

thereby causes the cams 82 and 83 to actuate the 'operating levers 28, and actuate the contacts 27 to send the desired information.

- amasar' er end of the line and which is actuated in sponse to the electric impulses brought Aabout by the operation of the manuali mov able member, may be a bell or other indicator, and as the manner in ,which such an lndicator is operatedl in response to the 'transmitting impulses is Well wat in the art and constitutes no part of this invention, it is not necessary to. illustrate or described the same.

ln Fig. 8 is shovvn a diderent form of the invention, and this is the prete term.

In thisgure, partswhich arethe same ae those described in connection with Figs. l to 6' are indicated b the samoreference characters, and modi ed elements are indicated -by similar reference characters with the letters a, t, etc., ap ended.A 'llhe transmitting mechanism is t e same as that described in,.connection with l to 't'. lt is to be observed, however, that while the armature 22 is loclied away from the magnet lS-during the time that the mechanism under the control oiE the manuallymovable member is in operation in the construction shown in Figs. l to .in the construction ,shown in ltig. .8 the armature 22 is locked against the lpole ot the m` Il@ by the interloclre ing mechanism, the projection on the, arm

' 20 being received in a notch 69a in the intertiti locking lever. ln this ceac, the cam Wheels 82 and 83E directly actuate the contact arms 3419K The arms 34h are termed vvitb'an er.- tension 3d, to which are preterably secured spring arms 3ft", to the ends ot which arms are attached teeth 3a@ which engage the cam Wheels 82% and 83m.. lin the "construction here shown when the mechanism controlled by the manually movable member is brought into operation, the armature tt is locked against the pole et the magnet le, and vthe arms 3d are all moved to the right, and the springs 3W move all ot the contact tongues 3am to the right, bringing the contacts 37 into engagement with the contacte 39. Then, vvhenfthe camwheels are rotated, the teeth 3d engaging theseA cam wheels are forced downwardly `and the contacts 3'? cried by the contact tongues 3a are brought into engagement with the contacts A8 to transmit impulses of the desired character.

at l claim and desire to secure by Letters Patent ot the `United States is;-

l. A, printing telegraph operable with rtorated tape, a manually movable memer message transmitting mechanisrmmeans nder control ot said tape tor actuating said ltransmitting mechanism, meafunder control ot said movable mber tor actuating said transmitting mechanism,

common electro-magnetic means tor actuating said tape controlled means and for controlling said movable member, and electrical interlockingmeans forinteri-optan? operation of lsaid tape controlled -means'n'hile i said ing. 2.

r, message actuatingsaid transmitting mechanism,

manually movable member. is operat- '3 A 'printing telegraphoperable 'with l rtorated tape, a manually movablememt transmitting mechanism,v means undercontrol of said tape for actu` atingv said transmitting mechanism, v,means under control of said movable member for ing said tape controlled means'andfor con' 'fl trolling said ,movable member, electrical K interlocking means for interrupting opera' v tion of said tape controlled. means while said movable member is operatmg, and 'electro-magnetic means for actuating saldriaterloching' means.

3. A printing telegraph operable perforated tape, a manually movable member, 'message means under control of said tape for actuating said "transmitting mechanism, means under control of said -A movable member for 'actuating said 'transmitting mechanism, common electromagnetic means for actuating said tape controlled means and for controlling said manually movable member, electrical interlocking `means for interrupt-y ing the operation of saidl tape controlled lmeans While said movable'member is operating, and electro-magnetic means energized in response to actuation oita said movable member lor lactuating said linterlocking mechanism. l 1

1d. A printing telegraph operable with message transmitting mechanism,v a periorf ated tape, means controlled by said tape for actuating said transmitting mechanism,

a manually movable member, means controlled by said member for actuating said transmitting mechanism electricalv interwith transmitting mechanism,

loog means'comprislng a lever having aI plurality of arms and interrupting operation oit-said tape controlled means while said movable 4member is in operation, and electro-magnetic means for' operating one Aarm of said lever, the other arms ofsaid lcvcrco-operating with said tape controlled means and With-said movable member, respectively. i l

5. A' printing telegraph operable with perforated tape; message mechanism, means controlled by said 'tape tor orating said transmitting mechanism, a manually movable member, an energy` storing device for operating the same, means controll by said movable member for actuating said transmitting mechanism, common electro-mactic means for actuating said tape-controd means and for controlling operation ot said movable member, and sets of contacts under control of said `mov able member, one set of contacts being normolly closed `and to be opened on movement iat tao v of said movable member and another set of said first electromagnet and prevents opbeing,r normally open and to be closed om eration of said contacts by said rst electromovement of said movable member. magnet.

6. In a transmitter, an electromagnet hav- In testimony whereof, I -have hereunto 5 ing an armature, sets of contacts controlled signed my name in the presence of two subl5 thereby, a second electromagnet having an vscribing witnesses.

armature, a lever operated by said last men EDWARD E. KLEINSCHMIIDTL toned armature and havin a notch where- Witnesses: by on energization of sai Ksecond electro- ADELE S. EBERHARDT,

10 magnet, said notch engages the armature DAUN L. Woon. 

